In the process of beneficiation, ore milling and grinding are essential material preparation before beneficiation. In most raw ores, useful minerals and gangue minerals are closely connected, and are often embedded in fine and even fine particles.

Therefore, multiple concentrators try to follow the process principle of "more breaking and less grinding" to reduce energy consumption and improve economic benefits, which puts forward higher requirements for vertical roller mill equipment.

Only by breaking them up and fully dissociating them, can they be enriched by the existing beneficiation methods. The existing beneficiation methods are limited by the particle size of materials to a certain extent, and the particles are too coarse or too fine, which can not achieve effective separation effect.